Superinsulators, a toy realization of QCD in condensed matter

Date

Sep 17, 2019

Time

10:30 AM - 11:30 AM

Speaker

Dr. Cristina Diamantini

Affiliation

INFN - Istituto Nazionale di Fisica Nucleare, Università di Perugia

Language

en

Main Topic

Materialien

Host

Grit Rötzer

Description

Superinsulators, a new topological state of matter, are dual superconductors, dissipationless vortex condensate with infinite resistance. This state of matter has been predicted in the critical vicinity of the superconductor-insulator transition (SIT) which is completely determined by charge-vortex topological interactions embodied by the Aharonov-Bohm/Aharonov- Casher (ABC) phases they acquire when encircling one another. On the insulating side this leads to a phase which is a single-color, asymptotically safe version of QCD in which the infinite resistance is caused by the linear confinement of charges. This phase has been experimentally detected in TiN, NbTiN and InO superconducting thin films, including signatures of asymptotically safe behaviour and of the dual, electric Meissner effect. This makes superinsulatots a “toy realization” of QCD with Cooper pairs playing the role of quarks. .

Links

• Seminars at the IFW

Last modified: Sep 17, 2019, 12:08:23 AM